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02-03-2013, 06:51 PM | #1 |
Scooby Newbie
Member#: 345832
Join Date: Feb 2013
Chapter/Region:
South East
Location: jacksonville,nc
Vehicle:2005 wrx sti blue |
idle problems
when my car idles, it drops constantly as low as 500 and below. drives like a champ until i put it in neutral and idle. it sometimes dies at stop lights. anyone have any idea
05 sti greddy turbo turboxs fmic ecutek injectors |
02-03-2013, 07:41 PM | #2 |
Sammo Hung
Moderator Member#: 10613
Join Date: Sep 2001
Chapter/Region:
South East
Location: N Fla / S Ga
Vehicle:2002 USDM WRX WRB |
did you do anything to your car lately?
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02-03-2013, 09:33 PM | #3 |
Scooby Specialist
Member#: 223316
Join Date: Sep 2009
Chapter/Region:
MWSOC
Location: MO
Vehicle:2005 STi & 02 WRX |
Hey there again! I understand your new to the forum so I'm guessing you bought your sti with these modifications on it?
It SOUNDS to me like you have a boost leak or a bad intercooler coupler (or one that needs to be tightened Check all of your couplers and make sure that they are tight Also, remember to check the boost lines around the turbo for breaks/tears - There could be quite a few other things that could cause rough idle, Let us know what progress you make with checking for leaks |
02-03-2013, 09:38 PM | #4 |
Scooby Newbie
Member#: 345832
Join Date: Feb 2013
Chapter/Region:
South East
Location: jacksonville,nc
Vehicle:2005 wrx sti blue |
thanks, i will check tomorrow after work
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02-03-2013, 09:38 PM | #5 |
Scooby Newbie
Member#: 326036
Join Date: Jul 2012
Chapter/Region:
SCIC
Location: SoCal
Vehicle:2005 WRX STi Black |
Same here. i just adjusted it with the Cobb. No boost leak but im running really rich. My mpg are down to 19 and going lower when im just sitting there or i turn the car on to warm up. I just need a tune.
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02-03-2013, 11:09 PM | #6 |
Scooby Newbie
Member#: 345832
Join Date: Feb 2013
Chapter/Region:
South East
Location: jacksonville,nc
Vehicle:2005 wrx sti blue |
Ooo....forgot to mention I cleaned my maf to make sure that wasnt the problem
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02-04-2013, 12:47 PM | #7 | |
Scooby Specialist
Member#: 223316
Join Date: Sep 2009
Chapter/Region:
MWSOC
Location: MO
Vehicle:2005 STi & 02 WRX |
Quote:
The MAF's are VERY TOUCHY on these cars. If you do not put it back to the correct location this will cause your car to not start. I've had this issue before also. Try to make sure everything is tight and in the correct location were it was before you cleaned it. - If you cleaned it with anything other then MAF sensor cleaner... I would recommend picking up a bottle. At the worse case senero you will need to buy a new MAF on the forum if you used anything with alcohol in it or gas. |
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02-04-2013, 02:23 PM | #8 |
Scooby Newbie
Member#: 345832
Join Date: Feb 2013
Chapter/Region:
South East
Location: jacksonville,nc
Vehicle:2005 wrx sti blue |
I used maf cleaner.....when I was looking up my problem I seen it could be a dirty maf....cleaned it and had no change...im checking all of couplings and hoses later....
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02-04-2013, 03:17 PM | #9 | |
Scooby Specialist
Member#: 223316
Join Date: Sep 2009
Chapter/Region:
MWSOC
Location: MO
Vehicle:2005 STi & 02 WRX |
Quote:
Alright, Good deal. Those MAF sensors can be a real pita. keep me posted. I'll check back later |
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02-04-2013, 06:08 PM | #10 |
Scooby Newbie
Member#: 345832
Join Date: Feb 2013
Chapter/Region:
South East
Location: jacksonville,nc
Vehicle:2005 wrx sti blue |
Checked all my hoses.....all seems well....everything is tight.....still stumped
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02-04-2013, 10:14 PM | #11 |
Scooby Specialist
Member#: 223316
Join Date: Sep 2009
Chapter/Region:
MWSOC
Location: MO
Vehicle:2005 STi & 02 WRX |
Is there anyway you can post a video of what its doing? or explain exactly what and when the issue is starting?
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02-04-2013, 10:44 PM | #12 |
Scooby Newbie
Member#: 245297
Join Date: Apr 2010
Chapter/Region:
South East
Location: Greer,SC
Vehicle:2004 WRX vf48 93 oct WRB |
Try your idle air control valve. There's plenty of threads on it. You'll need a new gasket $6 at advanced auto. But like everyone else check for leaks. Especially pre turbo there's so many hoses to check. Also check your PCV. If you take it off be careful it should move freely pick some carb cleaner or maf cleaner I can't remember double check. Just spray in all the holes and shake it to get the crap out. I only suggest all this cause I'm dealing with this problem as well
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02-05-2013, 05:51 AM | #13 |
Scooby Newbie
Member#: 345832
Join Date: Feb 2013
Chapter/Region:
South East
Location: jacksonville,nc
Vehicle:2005 wrx sti blue |
Ive read that too....I have seen plenty of pics, but I still cant find the iacv. They may also be cuz im limited on my knowledge of engines. Is there anyway you could post pics or vid of where its at? The ones ive seen havent been much help.
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02-06-2013, 08:15 PM | #14 |
Scooby Newbie
Member#: 317673
Join Date: Apr 2012
Chapter/Region:
Tri-State
Location: Bethlehem, PA
Vehicle:2004 wrx wrb |
IACV is right on top of the intake manifold before the intercooler
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02-05-2013, 05:51 AM | #15 |
Scooby Newbie
Member#: 345832
Join Date: Feb 2013
Chapter/Region:
South East
Location: jacksonville,nc
Vehicle:2005 wrx sti blue |
Ill try and get a vid of it idling today
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02-05-2013, 11:43 AM | #16 |
Scooby Newbie
Member#: 245297
Join Date: Apr 2010
Chapter/Region:
South East
Location: Greer,SC
Vehicle:2004 WRX vf48 93 oct WRB |
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02-05-2013, 04:00 PM | #17 | |
Scooby Specialist
Member#: 223316
Join Date: Sep 2009
Chapter/Region:
MWSOC
Location: MO
Vehicle:2005 STi & 02 WRX |
Quote:
[email protected] send it over or you can upload it to youtube/imageshack and post a link |
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02-05-2013, 05:59 PM | #18 |
Scooby Newbie
Member#: 99163
Join Date: Oct 2005
Chapter/Region:
South East
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Check throttle body gasket too.
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02-05-2013, 06:01 PM | #19 |
Scooby Newbie
Member#: 345832
Join Date: Feb 2013
Chapter/Region:
South East
Location: jacksonville,nc
Vehicle:2005 wrx sti blue |
https://www.youtube.com/watch?v=xMby...e_gdata_player
This is what it is doin at idle and after I let off the gas to put in neutral and coast....it drops really hard especially after it was just in a higher rpm range such as navigating a parking lot in 1st or 2nd....im sorry about the music |
02-05-2013, 08:35 PM | #20 |
Scooby Newbie
Member#: 90363
Join Date: Jul 2005
Chapter/Region:
South East
Location: CO
Vehicle:2005 |
video says its private
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02-06-2013, 08:17 PM | #21 |
Scooby Newbie
Member#: 317673
Join Date: Apr 2012
Chapter/Region:
Tri-State
Location: Bethlehem, PA
Vehicle:2004 wrx wrb |
Just cleaned and replaced my IACV gasket moments ago... Having the same problem. Still low idle. Hoping it just needs to break in. Stay in touch if you fix or diagnose any problems
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02-06-2013, 09:44 PM | #22 |
Scooby Newbie
Member#: 345832
Join Date: Feb 2013
Chapter/Region:
South East
Location: jacksonville,nc
Vehicle:2005 wrx sti blue |
Im gonna replace the spark plugs and a few other little things and see what happens
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02-21-2013, 03:56 PM | #23 |
Scooby Newbie
Member#: 345832
Join Date: Feb 2013
Chapter/Region:
South East
Location: jacksonville,nc
Vehicle:2005 wrx sti blue |
So just changed plugs and no change.....any ideas?
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02-22-2013, 10:55 AM | #24 |
Former Vendor
Member#: 226988
Join Date: Oct 2009
Chapter/Region:
South East
Location: Cary, NC
Vehicle:Like Us on Facebook! www.turbotime.us |
Could it just need a good tune? When was the last time it was tuned and was it someone reputable? Also, have you recently added an atmospheric BOV? Last question is, have you disconnected the battery recently?
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02-22-2013, 11:27 AM | #25 |
Scooby Newbie
Member#: 345832
Join Date: Feb 2013
Chapter/Region:
South East
Location: jacksonville,nc
Vehicle:2005 wrx sti blue |
Not sure f it was tuned...bought it as is 3 weeks ago....its got a bypass valve and I just disconnected the battery to change my pkugs.. u guys are in cary, nc right?
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